Lesson 4-petroleum alternatives

Question 1

constraint

Answer 1

n
محدودیت
something that restricts thought or action

Question 2

contamination

Answer 2

n
آلودگی-نا خالصی
being made less clean by a germ or hazardous substance

Question 3

deplete

Answer 3

v
تهی
to greatly decrease the supply of a resource or material

Question 4

dispose of

Answer 4

v
خلاص شدن از دستِ
to throw away-to get rid of-to kill

Question 5

elementally

Answer 5

adv
اساسن
in terms of elements-basically

Question 6

emission

Answer 6

n
انتشار
sending out from a small space into the general environment-a substance discharged into the air
+of …

Question 7

extinction

Answer 7

n
انقراض
complete disappearance-the end of existence
extinction implies an absolute end

Question 8

reservoir

Answer 8

n
مخزن آب یا مایع
a place where a liquid is collected and stored

Question 9

shrink

Answer 9

v
کوچک شدن-منقبض شدن
to become reduced in size,amount or value

Question 10

stable

Answer 10

adj
پایدار
firm and dependable-showing little change